Clear, dry and hot skies continue.
The 500 mb analysis for 12 UTC (above from SPC) shows that the west coast trough dominates conditions over Arizona, with the anticyclone pushed far to the east over northwest Texas. The Phoenix observation continues to be out of sync with surrounding observations: height and temperature too low and winds appear a bit too strong - not sure what's going on with their soundings up there.
The trough has allowed dry air at lower levels to push across the entire state. Surface plot below at at 7:00 am MST this morning shows only one station with a dewpoint over 50 F - this is about as bad as it can get in August.
Plot of detected CG flashes (second below, from Atmo and Vaisala) shows almost no thunderstorms across entire state yesterday (flashes for 24-hours ending at 2:00 am this morning).
Forecast below (from the 00 UTC WRF-GFS forecast) is for total precipitation through 5:00 pm on August 13th - ugh.
On Monday this week, three hot air balloons crashed near Teton Village, Wyoming, during inclement weather. Jack Hales has a blog post about the incident at:
http://blog.starvalleyweather.com/2020/08/05/teton-village-balloon-accident-on-august-3-2020-caused-by-micro-burst/
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